从石墨尾矿中回收绢云母的试验研究  

Study on recovery of sericite from the graphite tailings

作　　者：刘淑贤[1] 魏少波[1] 

机构地区：[1]河北联合大学矿业工程学院,河北唐山063009

出　　处：《中国矿业》2013年第7期97-100,共4页China Mining Magazine

基　　金：国家高技术研究发展计划(863计划)项目资助(编号:2012AA062403)

摘　　要：针对某石墨尾矿中绢云母含量为24%,造成有用矿物浪费的情况,采用硫酸为pH值调整剂、淀粉为抑制剂、十二胺和柴油为捕收剂,在pH=2.5、淀粉为200g/t、捕收剂十二胺为1000g/t以及柴油为100g/t的药剂制度下经一次粗选一次扫选四次精选的浮选工艺流程后,最终获得产率为10.21%、绢云母含量为70.41%、回收率为28.95%的绢云母精矿。Aiming at the situation of wasting graphite tailings,in that tailings,the sericite is 24%.The sericite was recovered by using sulfuric acid as regulator,starch as depressant,dodecylamine and diesel fuel as collector.The grade of the final sericite concentrate is 70.41%,the recovery is 28.95% and the productivity is 10.21% with the flow sheet which is once rough separation,once sort separation and four times cleaning separation with the pH=2.5,the dosage of starch is 200g/t,the dodecylamine is 1000g/t and the diesel fuel is 100g/t.

关 键 词：石墨尾矿 绢云母 浮选 回收 

分 类 号：TD977.3[矿业工程—选矿]